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Physics

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City University of New York (CUNY)

2019

Quantal density functional theory

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New Perspectives On The Schrödinger-Pauli Theory Of Electrons: Part I, Viraht Sahni Jan 2019

New Perspectives On The Schrödinger-Pauli Theory Of Electrons: Part I, Viraht Sahni

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Schrödinger-Pauli (SP) theory is a description of electrons in the presence of a static electromagnetic field in which the interaction of the magnetic field with both the orbital and spin moments is explicitly considered. The theory is described from the new perspective of the individual electron via its equation of motion or ‘Quantal Newtonian’ first law. The law is in terms of ‘classical’ fields whose sources are quantum mechanical expectation values of Hermitian operators taken with respect to the system wave function. The law states that each electron experiences an external and an internal field, the sum of which vanish. …